Positive action coin dispenser

ABSTRACT

Disclosed is a coin and currency changer utilizing a coin chute having two continuously intersecting arms wherein coins may be alternately stored. A plunger assembly is positioned at the bottom of the chute along the line of intersection of the two arms and is operative to dispense one coin at a time therefrom. The coin in the chute immediately above the dispensed coin is retained within the chute by a pinching action between the plunger assembly and the structure of the chute. A sensor is positioned in operative relation with the plunger assembly and senses the actual dispersal of the coins from the chute. Control circuitry counts the number of coins dispensed and is operative to inhibit functioning of the system if more than the desired number of coins is actually dispensed. There is further provided means for maintaining a proper number of coins within the chute by transferring the coins from a bulk hopper to the chute. Further, the combination of change dispensable by the changer is pre-programmable by a serviceman or alternately could be customer selected or controlled by data computed according to the requirements of any transaction which requires a flexible amount of change.

BACKGROUND OF THE INVENTION

Heretofore various types of coin and currency changers have been knownand utilized. However, most known changers have certain drawbacks withregards to the jamming of coin chutes, the necessity of stacking thecoins in a magazine, non-positive payouts, jackpotting, and theinflexibility of the system to adapt to payouts of varying combinationsof change for any given currency or coin.

Consequently, it is an object of the instant invention to present achanger utilizing an angled edge stacking coin chute which eliminatesthe inherent problem of jamming due to coin deformation or the insertionof an improper denomination of coins into a given chute.

Yet another object of the invention is to present a changer whichutilizes a bulk hopper wherein coins may be loaded without stacking andfrom which coins may be uniquely transported for depositing into theangled edge stacking chute.

Still another object of the invention is to present a changer whichutilizes a positive payout technique wherein accounting is made of thenumber of coins actually dispensed rather than the number of times whicha coin dispensing mechanism has functioned.

Still another object of the invention is to present a changer utilizingan overpayment detector circuit which immediately terminates thedispensing cycle and inhibits further operation of the changer when afirst coin, constituting an overpayment, is dispensed.

A further object is to provide an instantaneously data controlled changesystem for providing variable change combinations or amounts.

Yet a further object of the invention is to present a changer which isfield programmable by a serviceman to preselect the particularcombination of coins to be dispensed for any particular change-makingoperation so as to optimize the utility of the changer.

These objects and other objects which will become apparent as thedetailed descripton proceeds are achieved by a positive payout coin andcurrency changer operative to dispense change from money of any ofnumerous denominations, comprising: first circuit means for determiningthe validity of the money for which change is desired and producing asignal indicative of the validity and denomination thereof; coin chutes,one for each denomination of coins to be dispensed, operative to receivecoins from associated hoppers and maintain said coins therein, andsecond circuit means interconnecting said first circuit means and saidchutes for receiving and responding to said signal to effectuate therelease of respective predetermined numbers of coins from each chute andoperative to sense the escapment of each coin from each chute.

For a complete understanding of the structure and techniques of theinvention reference should be had to the following detailed descriptionand accompanying drawings wherein:

FIG. 1 is a perspective view of the angled-edge stacking chute utilizedwith the preferred embodiment of the invention;

FIG. 2 is a showing of a solenoid-actuated plunger of the invention incooperation with the chute as shown by taking a section along the line2--2 of FIG. 1; and

FIG. 3 is a schematic diagram of the control circuitry of the invention.

Referring now to the drawings and more particularly FIG. 1, it can beseen that the money changer of the instant invention preferably utilizesan angled-edge stacking coin chute designated generally by the numeral10. Such a coin chute is detailedly described in co-pending patentapplication Ser. No. 336,083, filed Feb. 26, 1973, and now U.S. Pat. No.3,844,298. The coin chute 10 receives coins from a bulk hopper (notshown) similar in nature to the bulk hopper described in co-pendingpatent application Ser. No. 413,429 filed Nov. 7, 1973. Suffice it tosay, that the bulk hopper utilizes a belt having coin receiving cleatsthereon to transport coins from a mass reservoir upward and into theneck 12 of the angled-edge stacking coin chute 10. While referenceshould be had to the above-identified patent application for a completeunderstanding of the chute 10, a brief description thereof will here begiven so as to facilitate an understanding of the instant invention.

The coins from the bulk hopper are deposited into the neck 12 in asingular time-spaced manner such that the coins fall one at a time uponthe flipper 18 positioned therein. The flipper 18 is pivotal about a pin20 such that the coins falling in the neck 12 and upon the flipper 18are caused to hit an exposed leg 22 causing the flipper 18 to pivotabout the pin 20 and thus directing a coin into an appropriate channel14, 16. As can be seen, the depositing of the coin into the appropriatechannel leaves the flipper 18 in a position so as to direct the nextcoin into the opposite channel. A slot 24 is presented in the structureof the neck 12 and makes stopping engagement with a pin 26perpendicularly protruding from the structure of the flipper 18. Ananti-bounce spring 28 is interconnected between the top of the flipper18 and a portion of the structure of the neck 12 at a point below thepivotal pin 20 to prevent bouncing of the flipper 18 after the passingof a coin to guarantee that the flipper will be properly positioned forthe passage of the next coin.

The coins, alternately passed into the channels 14, 16, are directedinto the coin chute 30 comprising coextensively intersecting arms 32,34. As can be seen, the channel 14 directs coins into the arm 32 whilethe channel 16 directs coins into the arm 34. Thus the coins will bestored within the chute 30 alternately between the arms 32 and 34 witheach coin supporting a subsequently received coin upon the edge thereofwith the two coins having non-aligned edges. As is mentioned in theabove referenced patent application, such a coin chute 30 guaranteesthat no jamming of the chute will occur since no two coins within thechute will have their edges aligned and since the arms 32, 34 of thechute may be of sufficient width to allow for the passage and receptionof over-sized or bent coins.

As is best seen in FIG. 2, the chute 30 further includes a light source38 and an associated photodetector 40, the significance of which willbecome apparent hereinafter. The light sensing means 38, 40 ispositioned along the line of intersection between the arms 32, 34 of thechute 30. Also positioned along this line of intersection is a plungerassembly comprising a support plunger or pawl 44 and a pinching plungeror pawl 46. As can be seen, these pawls respectively enter into theconfines of the chute 30 at the point of intersection of the arms 32 and34 through the holes 54 and 52, respectively. The pawls 44 and 46 areinterconnected by means of a connecting rod 48 which is pivotal about apivotal pin 50. A solenoid 42 is operative to control the actuation ofthe pawls 44 and 46 so that the pawls enter and leave the confines ofthe chute 30 through the holes 52, 54 in a mutually exclusive manner. Ascan be seen from the particular embodiment shown, the pawls 44, 46 enterinto the chute 30 in such a manner as to come into close proximity withthe edge 56 of the arm 32 and thus substantially restrict the commonpassage of the two arms.

A unique provision of the instant invention is that the connecting rod48 is substantially one and one half times the diameter of the coin tobe associated with the particular chute 30. As can be readilyappreciated from an understanding of FIG. 2, with the pawls 44 and 46positioned as shown in the figure, coins received within the chute 30will be restrained from dispensing from the chute by the support plungeror pawl 44. Upon appropriate actuation of the solenoid 42, the pawl 44is withdrawn and a pawl 46 is forced into the chute 30. The coin whichwas resting immediately upon the pawl 44 is then dispensed from thechute 30 and, simultaneously with the dispensing, the pawl 46 makescontact with the coin immediately opposite the hole 52 and forces thesame against the edge 56 thus retaining that coin and all other coinsretained in the chute thereabove. As will be further discussedhereinafter, the photodetector 40 will sense the absence of the coinwhich has been dispensed since light is, subsequent to the dispensing ofthe coin, passed from the light source 38 to the detector 40. Thesolenoid 42 is then deactuated and the pawl 44 returns into the chute 30through the hole 54 while the pawl 46 is removed therefrom. The coinwhich was pinched against the edge 56 by means of the pawl 46 is thenfree to drop upon the pawl 44 so as to initialize the chute 30 foranother coin dispersal. It should be readily apparent that, with thepawls 44, 46 entering the holes 54, 52 obliquely to the arms 32, 34,there is required but a single solenoid actuated plunger assembly toachieve the dispensing of coins from both of the arms of the chute.

As is also shown in FIG. 1, and as will be elaborated on hereinafter,there is also provided a light source 36 and an accompanyingphotodetector (not shown) similar to the assembly 38, 40. The assemblyutilizing the light source 36 is positioned at a point within the chute30 such that the presence of a particular number of coins above thesupport plunger or pawl 44 will block the transmission of light betweenthe source and detector. This detector as will become apparent,guarantees that there is a sufficient number of coins within the chuteto achieve a desired dispersal. While the light source 36 may bepositioned so as to detect the presence of any particular number ofcoins, it is preferred that the source 36 and accompanying detector bepositioned so as to detect the presence or absence of the maximumpayment coin within the chute 30.

As can further be seen from FIG. 2, the light source and detector 38, 40are positioned at a point closely adjacent the support plunger 44 so asto not be interfered with by means of the coin being pinched against theedge 56 by the plunger 46.

CIRCUIT DESCRIPTION

In FIG. 3 there is presented a preferred embodiment of the controlcircuitry necessary for achieving the objects of the invention. It is tobe understood of course and it will be apparent to those skilled in theart that any of numerous circuit configurations might be implemented toperform the desired functions. It should further be noted that thecircuitry of FIG. 3 is but one circuit of a plurality of identicalcircuits which would be used in a money changer. There would be acircuit similar to that shown utilized for each value of coin which thesystem would be capable of dispensing in making change. In a dollar billchanger, for instance, there would be three circuits identical to thoseshown in FIG. 3, one for nickels, one for dimes, and one for quarters.There would similarly be provided three bulk hoppers such as thosedescribed hereinabove by reference to the copending patent application.Associated with each of the bulk hoppers would be a coin chute assemblyagain similar to that described above. For purposes of brevity, only onesuch circuit will be herein described and it will be understood that oneskilled in the art can appropriately interconnect several such circuits,hoppers, and coin chutes to achieve the specific desired structure.

Referring now to FIG. 3, it can be seen that the circuitry of theinvention utilizes a multiplexer 60 having three sets of binary codeddecimal (BCD) inputs connected thereto. There is one set of such inputsfor the appropriate dispensing of change for a dollar, a half dollar,and a quarter. The three sets of BCD inputs are connected to a series ofthumb wheel switches or other appropriate programming means (not shown)whereby the particular values S1, S2 and S4 for each of the three setsof inputs might be appropriately chosen. This programming allows the onewho maintains the system to preprogram the particular combination ofchange which will be dispensed by the structure of the invention. Thusthe maintenance man may pre-program, for the purposes of theestablishment within which the system is placed, that particularcombination of change which will be dispensed for each of the variousdenominations of money which may be changed. Of course, it should beapparent to those skilled in the art that the combinations of changeneed not be preprogrammed but could indeed be selected by the customeror, in a vending machine application, be dependent on the particularitem selected for purchase.

The particular set of BCD inputs which will be evidenced at the outputof the multiplexer 60 is determined by the presence of any one of threevend signals (VS) as shown and as is well known in the art. A vendsignal is created when the associated currency validity tester of theinvention determines that the money for which change has been sought isindeed valid. Such validity detectors are well known in the art and itshould be understood that any of numerous such detectors would beappropriate for achieving the objects of the invention. Evidence of thepresence of a vend signal is also passed as an output from themultiplexer 60 and applied to an input of the AND gate 62. The BCDoutputs of the multiplexer are respectively applied to the AND gates 64,66 and 68 which in turn feed the down counter 70. The output of the downcounter 70 feeds a zero state detector 76 which fundamentally comprisesdecode circuitry determining when the down counter 70 has reached acount of 000. As will be discussed hereinafter, a count of 000 isachieved by the down counter 70 either on initial reset of the system orafter the proper payment of coins with which the circuitry isassociated. At that time, the true output of the circuit 76 is at alogic one state and enables the AND gate 86.

The other input of the AND gate 86, as will also be discussedhereinafter, is an indication of the presence of a particular number ofcoins within the coin chute 30 as indicated by the upper light sourceand photo detector 36. When the zero state detector 76 is set and whenthe proper number of coins are positioned within the coin chute 30, theoutput of the AND gate 86 is at a high level thus enabling AND gates64 - 68 to present the output of the multiplexer 60 at the input of thedown counter 70. The output of the AND gate 86 is also applied to theAND gate 62 which combines with the presence of the vend signal toactuate the positive edge detector 72 which presents a pulse upon therising edge of the output of the AND gate 62 to preset the down counter70 at the binary value indicated by the outputs of the AND gates 64 -68. Quite obviously, if a binary state other than zero is set into thedown counter 70, the zero state detector 76 will reset indicating thatthe down counter 70 is not at a zero value.

With the zero state detector 76 reset, the AND gate 74 is enabled toreceive signals from the bottom detector comprising the light source andphoto detector 38, 40 described hereinabove. With a coin resting on thesupport plunger or lower pawl 44, the light between the source 38 anddetector 40 is inhibited and a low level is presented to an input of theAND gate 74 and the NOR gate 94. It should be appreciated than that bothof the inputs to the NOR gate 94 are at a low level and hence the outputof that gate and the subsequent output of the driver 100 are at a highlevel and the solenoid 42 is actuated so as to dispense the coin restingupon the support plunger 44 and pinch the coin immediately thereabove bymeans of the pinching plunger 46 in the manner described above. The coinlowermost in the chute therefore passes from the chute and is dispensedas a portion of the change to be made.

With the bottom coin dispensed, light passes from the source 38 to thedetector 40 thus presenting a logic 1 level at the input of the enabledAND gate 74 thus clocking the down counter 70 once and causing the sameto count down 1 count. Simultaneously, a one level is passed to the NORgate 94 which, through the driver 100, releases the solenoid 42 thuswithdrawing the pinching plunger 46 and forcing the support plunger 44into the chute to allow the coins therein to again be prepared for asubsequent dispensing. When the coins fall upon the lower pawl 44, thephoto detector circuitry 38, 40 again presents a zero level to an inputof the NOR gate 94 again causing actuation of the solenoid and asubsequent dispensing of the coin. The absence of the coin is againdetected by the circuitry 38, 40 and this condition is signalled to thedown counter 70 via the AND gate 74. This process continues until suchtime as the down counter 70 has been counted down to zero. At that time,the zero state detector 76 sets and the NOR gate 94 is consequentlylatched with its output at a logic zero thus disabling the actuation ofthe solenoid 42.

As can be seen, there is also provided a driver 98 directly connected tothe output of the bottom detector 38, 40 and producing an output pulseupon the dispersal of each individual coin. It is preferred that theoutput of the driver 98 be connected to individual counters whereby thetotal number of coins dispensed by each of the various circuits of thesystem may be tallied so as to present a running total of all coinsdispensed.

It should be here briefly noted that the structural positioning of thelight source 38 and photo detector 40 with respect to the supportplunger 44 is important to guarantee the proper actuation of thesolenoid 42 and to guarantee that but a single coin will be dispensedwith each actuation thereof. For this purpose, the bottom detector 38,40 is positioned directly above the positioning of the lower pawl 44 soas to guarantee that the light passed between the elements 38 and 40will be blocked until such time as the coin has almost totally escapedfrom the chute 30. The mechanical delay characteristic of the solenoidand plunger assembly allows the coin to totally escape and to pass theremaining distance of the chute 30 after clearing the light path betweenthe elements 38 and 40 so as to guarantee that the coin has totallycleared the actuation path of the lower pawl 44 before the pawl makesits movement back into the confines of the chute 30.

A unique provision of the instant invention is the incorporation of anoverpayment detector 96. As can be seen, one input of the detector 96 isthe true output of the zero state detector 76 while the other outputthereof is the signal created by the bottom detector 38, 40.Fundamentally, the overpayment detector 96 comprises a sequence detectorwhich detects a change in state of the signal from the bottom detector38, 40 when the other input to the circuit 96 is at a logic one levelindicating that the down counter 70 has counted down. In other words,the overpayment detector 96 is operative to detect the subsequentpassing of a coin after the proper number of coins has been dispensed.This is commonly referred to in the art as a jackpotting effect and thecircuit 96 is presented to detect the same. The overpayment detector 96is normally in a reset condition such that the setting of the sameproduces a logic zero at the output which in turn produces a logic oneat the output of the inverter 102 which forces a latching relay (notshown) to actuate. Normally closed contacts of the latching relayconduct the power from the power supplies of the system to the circuitryand operating mechanisms thereof. Consequently, the actuation of thelatching relay disconnects the power supply from the circuitry thusinhibiting the entire mechanism of the system and presenting the same inan inoperative form. Thus it can be seen, that the system is renderedinoperative upon the detection of the first coin passing duringjackpotting.

It should be apparent to those skilled in the art that any of numerouscircuit configurations might be developed to satisfy the desiredfunction of the overpayment detector 96. One particular embodiment isillustrated within the dotted block 96 to comprise the inverter 110, ORgate 112, NAND gates 114, 116 and AND gate 118. As is well known tothose skilled in the art, the gates 114 and 116 are interconnected toform a latch or flip flop. It should be readily appreciated that whenthe changer is prepared to receive money the true output of the zerostate detector 76 is at a logic 1 while the output of the bottomdetector 38, 40 is a logic zero. Consequently, the latch 114, 116 is setat a logic 1 with the output of the AND gate 118, and consequently thezero state detector 96, being at a logic zero level. When a vend signalis received, as discussed above, the true output of the zero statedetector 76 goes to a logic zero latching the output of the flip flop114, 116 at a logic zero not withstanding the toggling of the output ofthe bottom detector 38, 40 as coins are dispensed. The output of the ANDgate 118 is consequently held at a logic zero level. Directly after theproper payout is completed, the true output of the element 76 goes to alogic 1 as described above. At this instant in time the output of thebottom detector 38, 40 is at a logic 1 since the coin immediatelypositioned above the last coin dispensed is pinched between the upperpawl 46 and the chute structure. After this coin falls down onto thesupport plunger 44, the output of the detector 38, 40 goes to a logiczero causing the output of the flip flop 114, 116 to latch at a logicone. Now, if the coin resting upon the support plunger 44 is dispensedor "paid out" then the detector 38, 40 will supply a logic 1 to theassociated input of the AND gate 118 thus causing the output of thatgate to go to a logic 1 indicating that an overpayment has been made.

It should of course be apparent that the features necessary forachieving the objects of the overpayment detector 96 might also besupplied by means of comparator logic operative to receive BCD datarelating to the number of coins to be dispensed and other BCD datarelating to the number of coins actually dispensed and producing outputsindicating the correlations between the two.

As can be seen, there is a second input to the AND gate 92 which cansimilarly cause actuation of the latching relay. This input is from theOR gate 90 which itself has two inputs which will be discussed directlyhereinafter.

There is provided with the control circuitry of the invention a 15second one shot 78 and a 100 millisecond one shot 80. It should beapparent from an understanding of the bulk hopper as identified in theabove-mentioned copending patent application, that there is provided amotor which, when caused to drive, drives a belt which conveys the coinsfrom the bulk reservoir upward and into the neck and down the chute ofthe chute assembly 10. The one shot 78 is operative to control thetiming for which the motor will run and more particularly to control themaximum amount of time which the motor will be allowed to run. Uponactuation of the one shot 78, the true output will go to a high statefor a 15 second duration. Of course, it should be readily understoodthat the time duration of the one shot 78 is controlled in a normalmanner by appropriate adjustment of an RC circuit connected to thetiming control line. As can be seen, the one shot 78 may be actuated byany of three signals all of which are operative to begin anew a 15second timing duration. The first of these signals is the output of thepositive edge detector 72 which is indicative of the fact that a vendsignal has been established and the zero state detector 76 is set andthere are the appropriate number of coins contained within the chute.The one shot 78 is also initialized by means of the initial reset signal(IR) which is created in the normal manner when power is first turned onfor the system. A third means for actuating the 15 second time intervalis the actuation of the top detector comprising the upper light source36 and its associated photo detector. Any one of these three signalswill initiate a 15 second time interval output from one shot 78.

The one shot 80 is again adjustable by means of its associated timingcontrol arm and is preferably set at a 100 millisecond time interval.This one shot is provided for time delay purposes only and is actuatedeach time that a signal is produced by the top detector. As can be seen,the signal produced by the top detector is also applied to an input ofthe OR gate 82. The other input of the OR gate 82 is the 100 millisecondoutput pulse from the one shot 80. It should be apparent that if no coinis blocking the light transmission of the top detector then the outputof the OR gate 82 will be at a high level. In other words, the output ofthe OR gate 82 indicates the absence of a coin blocking the lighttransmission associated with the top detector. As coins drop down thechute 30 and intermittently pass through the light path of the topdetector, false signals would be emitted indicating the presence of acoin at that level. To alleviate this problem, the one shot 80 provides,upon the immediate sensing of the leading edge of a coin, a 100millisecond positive level pulse which is applied to the OR gate 82 tonegate the effect of the zero level pulse created by the top detectorduring the passage of the coin.

The output of the OR gate 82 which indicates the absence of a particularnumber of coins within the chute 30 is applied to an input of the ANDgate 88. There is further applied to an input of the AND gate the outputof the zero state detector 76. A further input to the AND gate 88 is thetrue output of the one shot 78 which will be at a logic one level for a15 second period time duration from the receipt of any one of theabove-mentioned pulses. Thus it can be seen that the output of the ANDgate 88 is at a high level when a particular number of coins is notpresent within the chute and when the output of the zero state detector76 indicates that the down counter 70 has counted down and when theoutput of the one shot 78 is at a high level. The output of the AND gate88 is applied through the driver 104 to the motor associated with thebulk hopper which achieves the loading of the chute 30. Thus it shouldbe apparent that the motor will not operate to further attempt thedelivery of coins from the bulk reservoir to the chute if the desirednumber of coins is present in the chute or if the output of the downcounter 70 is not at a zero level or if the 15 second timer is notactuated. It should be readily apparent then that the intereaction ofthe three circuit elements by means of their application to the AND gate88 guarantees that the chute 30 will always maintain a sufficient numberof coins to achieve a change making operation.

The output of the OR gate 82 passes through an inverter 84 and is thenapplied to an input of the OR gate 90. The output of the inverter 84 isindicative of the fact that there are indeed a particular number ofcoins within the coin chute 30. It should now be readily apparent thatby means of the OR gate 90 the latching relay mentioned hereinabove isactuated to disconnect the power supply from the circuitry of the systemif the predetermined number of coins is not present in the chute afterthe motor has been caused to operate for a 15 second time period. Inother words, if the prescribed number of coins is not present in thechute and if the output of the one shot 78 is at a low level then a lowlevel input will be incident to the AND gate 92 creating a logic onelevel at the output of the inverter 102 thus actuating the latchingrelay. Consequently, the system is operative to disable the entiresystem when it is discovered that there are either insufficient coins inthe bulk hopper to load the chute or there has been a jamming ormalfunction whereby the loading of the chute cannot be achieved.

There is further provided in combination with the circuitry of theinvention a control loop for an inhibit relay which prevents theinsertion of a subsequent piece of money for change while another changeoperation is being performed. As can be seen, the inhibit relay receivestwo signals, the output of the zero state detector 76 and thecomplementary output of the OR gate 82. In other words, the output ofthe AND gate 86 will be a zero and consequently the output of theinverter 106 will be a one at any time that the zero state detector 76is at a reset condition or when there are fewer than the prescribednumber of coins within the chute 30. It should be readily apparent thatthese two conditions will exist when a change operation is beingperformed. As was mentioned hereinabove, any total system will includeseveral of the identical circuits as shown in FIG. 3 and in suchincidence the outputs of the inverter 106 may be wire-ORed together andapplied to the single inhibit relay such that no money will be receivedfor change while any of the circuits are still in the operation ofmaking change. Similarly, the outputs of the respective inverters 102may also be wire-ORed together.

Thus it can be seen that the objects of the invention have been achievedby the structure and technique presented hereinabove. While inaccordance with the Patent Statutes only the best mode and preferredembodiment of the invention have been presented and described in detail,it is to be understood that the invention is not limited thereto orthereby. Consequently, for an appreciation of the scope and breadth ofthe invention reference should be had to the following claims.

What is claimed is:
 1. A positive payout coin dispenser operative todispense change for money of any of numerous denominations,comprising:first circuit means for determining the validity of the moneyfor which change is desired and producing a signal indicative of thevalidity and denomination thereof; coin chutes, one for eachdenomination of coins to be dispensed, operative to receive coins fromassociated hoppers and maintain said coins therein; and second circuitmeans, interconnecting said first circuit means and said chutes forreceiving and responding to said signal to effectuate the release ofrespective predetermined numbers of coins from each chute and operativeto sense the actual escapment of each coin from each chute; said secondcircuit means including a solenoid-actuated release mechanism positionedat the bottom of the chute to control the release of coins and a firstsensing means positioned above said release mechanism for sensing thepassing of a coin from said chute.
 2. The coin dispenser as recited inclaim 1 wherein said chutes comprise two intersecting arms, each capableof receiving and storing coins, and means for directing the depositingof coins such that each coin will support a subsequently received coinon an edge thereof with the edges being misaligned.
 3. The coindispenser as recited in claim 2 wherein the second circuit means furtherincludes a plunger having two pawls positioned along the intersection ofthe chute arms and connected to said release mechanism, the pawls beingoperative to pass into said chute and make contacting engagement withthe coins in either of said arms.
 4. The coin dispenser as recited inclaim 3 wherein one of said pawls makes contacting engagement with thecoins by pinching the same between the pawl and the chute and the othermakes contacting engagement by supporting coins on their edges, thesolenoid actuated release mechanism being operative to cause the pawlsto make contacting engagement with the coins in a mutually exclusivemanner.
 5. The coin dispenser as recited in claim 1 wherein said secondcircuit means further includes an overpayment detecting means connectedto said first sensing means for determining when the number of coinspassing from the chute exceeds the predetermined number of coins to bepassed.
 6. The coin dispenser as recited in claim 5 wherein saidoverpayment detecting means is operative to inhibit the operation of thechanger upon sensing the passage of a first coin in excess of thepredetermined number.
 7. The coin dispenser as recited in claim 1wherein said chute comprises two intersecting arms, each capable ofreceiving and storing coins, and means for directing the depositing ofcoins such that each coin will support a subsequently received coin onan edge thereof with the edges being misaligned.
 8. The coin dispenseras recited in claim 1 which includes a second sensing means positionedadjacent said chute at such a point as to determine the presence orabsence of a particular number of coins in said chute and operative toinhibit the operation of the changer if the particular number is notpresent in the chute at a particular time.
 9. The coin dispenser asrecited in claim 1 wherein said second circuit means includesprogramming means providing for the selectability of the combination ofchange to be dispensed for each of the numerous denominations of money.10. In a coin dispenser, the improvement comprising:a chute having twointersecting arms, the arms alternately receiving and storing coins inan angled edge stacked manner; dispensing means positioned at the bottomof the chute along the intersection of the two arms and operative atsaid intersection to alternately release coins from each of said arms,said means including a solenoid and an arm connected to said solenoid,the arm having a pawl at each end, said pawls entering the chute at saidintersection in a mutually exclusive manner and wherein one of saidpawls is operative to support a coin thereon and the other of said pawlsis operative to retain a coin by forcing the same against structure ofthe chute.
 11. The improvement in a coin dispenser as recited in claim10 which further includes sensing means positioned at said intersectionbetween said pawls for sensing the presence and absence of coins betweensaid pawls.
 12. In a coin dispenser having validity detection circuitryto ascertain the validity of any of numerous denominations of money andcause the dispensing of coins in change therefore, the improvement,comprising:first circuit means for selecting a number of coins to bedispensed; second circuit means connected to the first circuit means forsensing the actual dispersal of coins; third circuit means connected tothe first circuit means for determining when the selected number ofcoins have been dispensed, said third circuit means including a sequencedetector operative to inhibit the changer at that time when the outputof the third circuit means indicates that the selected number of coinshave been dispensed and the output of the second circuit means indicatesthat a subsequent coin has been dispensed; and fourth circuit meansconnected to the second and third circuit means for rendering thechanger inoperative for dispensing change upon detection of the firstexcess dispersal.
 13. The improvement in a coin dispenser as recited inclaim 12 wherein the second circuit means comprises a photodetectoractuated by the dispersal of a coin, and wherein the first circuit meanscomprises a multiplexer connected to the validity detection circuitryand a counter connected to and controlled by the photodetector.
 14. Theimprovement in a coin dispenser as recited in claim 13 wherein thecounter is a down counter connected to and loaded by the multiplexer andthe third circuit means comprises a decode circuit operative to sensethe output of the down counter and detect a zero level thereat.
 15. Theimprovement in a coin dispenser as recited in claim 12 wherein the firstcircuit means includes a counter and the third circuit means comprisesdecode circuitry connected to the counter and the sequence detector andoperative to determine when the proper number of coins have beendispensed.
 16. The improvement in a coin dispenser as recited in claim15 wherein the second circuit means comprises a photodetector connectedto the counter and the sequence detector.
 17. In a coin dispenser havingvalidity detection circuitry to ascertain the validity of any ofnumerous denominations of money and calls to the dispensing of coins inchange therefore, the improvement, comprising:a multiplexer connected tothe validity detection circuitry for selecting a number of coins to bedispensed; a counter connected to said multiplexer; a photo detectorconnected to said counter for sensing the actual dispersal of coins andstepping the counter on each such dispersal; first circuit meansconnected to the counter for determining when the selected number ofcoins have been dispensed; and second circuit means connected to thefirst circuit means and the photo detector for rendering the changerinoperative for dispensing change on detection of a first excessdispersal.